Spain's amazing 4-3 victory over Yugoslavia was marred by several security lapses, including an incident at the end when the referee was hit in the eye by a coin thrown from the crowd.

On two separate occasions Yugoslav supporters ran onto the pitch in Bruges and confronted French referee Gilles Veissiere.

Tournament organisers Uefa are set to launch an investigation into the incidents.

A spokesman for European football's governing body confirmed: "The referee was hit in the eye by a coin. He was bleeding from the cut but it's not a serious injury."

Yugoslavia Vujadin Boskov condemned the fans who had attacked the referee: "Supporters are as they are, but I don't think it is a good gesture to throw a coin at the referee," he said.

Uefa will investigate the lapses in security

The first lapse in security occurred when a Yugoslav fan ran onto the field to protest against the red card issued to Slavisa Jokanovic in the 62nd minute.

He was escorted away by police - but only after he was able to reach referee Veissiere and scream abuse in his face.

Then at the end of the incredible game, which saw Spain score two goals deep into injury
time to book a place in the quarter-finals, a man draped in a Yugoslav flag broke through stewards and barbed wire and ran the full length of the pitch in a bid to get to the referee.

This time the Spanish players protected the official until stewards came to his assistance.

As he left the field, Veissiere was struck in the eye by a coin thrown from the stand, while flares were thrown onto the pitch after each of the Yugoslav goals.